#include<bits/stdc++.h>
using namespace std;
const int N=200003;
int a[N];
int main(){
    freopen("duel.in","r",stdin);
    freopen("duel.out","w",stdout);
    int n; cin>>n;
    int mx=0,sum=0;
    for(int i=1;i<=n;i++){
        int x; cin>>x; a[x]++,mx=max(mx,a[x]);
    }
    cout<<mx<<endl;
    return 0;
}
